val/113.py

import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,41,0))
w1=cq.Workplane('XY',origin=(0,0,-10))
r=w0.sketch().push([(6,0)]).circle(4).reset().face(w0.sketch().segment((5,-3),(7,-3)).segment((8,3)).segment((5,3)).close().assemble(),mode='s').finalize().extrude(-141).union(w1.workplane(offset=13/2).moveTo(0,63).cylinder(13,37))